5.2 Specications for mounting linear motors
Mounting system
The following specications apply when mounting primary sections and secondary sections to
the machine:
• Use M5 screws with property class 10.9. (friction value μ
tot
=0.1).
Table 5-1 Number of screws per motor type
Number of screws
4 8 12
1FN3050-1KD00
1FN3100-1KC50
1FN3150-1KC70
1FN3050-2KC40
1FN3100-2KC50
1FN3150-2KC70
-
1FN3100-3KC50
1FN3150-3KC70
• Only use new screws that have not been used before.
• Ensure that the correct types of mounting screws are used to fasten the secondary sections:
– Cylinder head screws with standard head for 1FN3050 to 1FN3150 according to
DIN EN ISO 4762 (hexagon socket-head screw) or DIN EN ISO 14579 (hexalobular screw)
• Ensure that the mounting surfaces are free of oil and grease and are clean and unpainted.
• Comply with the optimal surface roughness depth Rz of the screwing surface. Rz is between
10and 40μm.
• Minimize the number of joints. This keeps the settling eect for the material and the screws
low.
• Carefully maintain the specications for the thread depths and screw-in depths in the primary
section.
• The tightening torque is 7.6Nm.
Tighten the xing screws using torque control. If you cannot tighten the xing screws using
torque control, at least use a calibrated torque wrench with a short wrench insert.
You can increase the load capability of the screwed connection when using a tightening
procedure with controlled angle of rotation or yield limits.
• Tighten the screws gradually, with no jerky movements.
• To secure the screws, select a long clamping length l
k
/d>5.
Alternatively, use a medium strength threadlocker to prevent screws becoming loose, e.g.
Loctite 243.
• Minimize the amount that the screws settle. To do this, retighten all screws.
Installation
5.2Specications for mounting linear motors
Naturally-Cooled 1FN3 Linear Motors
60 Operating Instructions, 06/2023, A5E52220465B AB
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